Okla. Stat. tit. 16 § 19
A warranty deed made in substantial compliance with the provisions of this chapter, shall convey to the grantee, his heirs or assigns, the whole interest of the grantor in the premises described, and shall be deemed a covenant on the part of the grantor, that at the time of making the deed he is legally seized of an indefeasible estate in fee simple of the premises and has good right and full power to convey the same; that the same is clear of all encumbrances and liens, and that he warrants to the grantee, his heirs and assigns, the quiet and peaceable possession thereof, and will defend the title thereto against all persons who may lawfully claim the same, and the covenants and warranty shall be obligatory and binding upon any such grantor, his heirs and personal representatives as if written at length in such deed.
Okla. Stat. tit. 16, § 19